diff --git a/include/glob.hpp b/include/glob.hpp
index d234961..919d477 100644
--- a/include/glob.hpp
+++ b/include/glob.hpp
@@ -13,4 +13,125 @@ enum class Glob_Result
 // https://github.com/tsoding/glob.h
 Glob_Result glob(const char *pattern, const char *text);
 
-#endif
\ No newline at end of file
+#endif // GLOB_HPP
+
+#ifdef GLOB_IMPLEMENTATION
+
+Glob_Result glob(const char *pattern, const char *text)
+{
+	while (*pattern != '\0' && *text != '\0')
+	{
+		switch (*pattern)
+		{
+		case '?':
+		{
+			pattern += 1;
+			text += 1;
+		}
+		break;
+
+		case '*':
+		{
+			Glob_Result result = glob(pattern + 1, text);
+			if (result != Glob_Result::UNMATCHED)
+				return result;
+			text += 1;
+		}
+		break;
+
+		case '[':
+		{
+			bool matched = false;
+			bool negate = false;
+
+			pattern += 1; // skipping [
+			if (*pattern == '\0')
+				return Glob_Result::SYNTAX_ERROR; // unclosed [
+
+			if (*pattern == '!')
+			{
+				negate = true;
+				pattern += 1;
+				if (*pattern == '\0')
+					return Glob_Result::SYNTAX_ERROR; // unclosed [
+			}
+
+			char prev = *pattern;
+			matched |= prev == *text;
+			pattern += 1;
+
+			while (*pattern != ']' && *pattern != '\0')
+			{
+				switch (*pattern)
+				{
+				case '-':
+				{
+					pattern += 1;
+					switch (*pattern)
+					{
+					case ']':
+						matched |= '-' == *text;
+						break;
+					case '\0':
+						return Glob_Result::SYNTAX_ERROR; // unclosed [
+					default:
+					{
+						matched |= prev <= *text && *text <= *pattern;
+						prev = *pattern;
+						pattern += 1;
+					}
+					}
+				}
+				break;
+				default:
+				{
+					prev = *pattern;
+					matched |= prev == *text;
+					pattern += 1;
+				}
+				}
+			}
+
+			if (*pattern != ']')
+				return Glob_Result::SYNTAX_ERROR; // unclosed [
+			if (negate)
+				matched = !matched;
+			if (!matched)
+				return Glob_Result::UNMATCHED;
+
+			pattern += 1;
+			text += 1;
+		}
+		break;
+
+		case '\\':
+			pattern += 1;
+			if (*pattern == '\0')
+				return Glob_Result::SYNTAX_ERROR; // unfinished escape
+																					// fallthrough
+		default:
+		{
+			if (*pattern == *text)
+			{
+				pattern += 1;
+				text += 1;
+			}
+			else
+			{
+				return Glob_Result::UNMATCHED;
+			}
+		}
+		}
+	}
+
+	if (*text == '\0')
+	{
+		while (*pattern == '*')
+			pattern += 1;
+		if (*pattern == '\0')
+			return Glob_Result::MATCHED;
+	}
+
+	return Glob_Result::UNMATCHED;
+}
+#endif // GLOB_IMPLEMENTATION
\ No newline at end of file
diff --git a/source/func.cpp b/source/func.cpp
index 2db0a56..4d35e45 100644
--- a/source/func.cpp
+++ b/source/func.cpp
@@ -1,9 +1,11 @@
 #include <cstring>
 
 #include "func.hpp"
-#include "glob.hpp"
 #include "buffer.hpp"
 
+#define GLOB_IMPLEMENTATION
+#include "glob.hpp"
+
 #define CRYPTORAND_IMPLEMENTATION
 #include "cryptorand.hpp"
 
diff --git a/source/glob.cpp b/source/glob.cpp
deleted file mode 100644
index cdb3ad5..0000000
--- a/source/glob.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-#include "glob.hpp"
-
-Glob_Result glob(const char *pattern, const char *text)
-{
-	while (*pattern != '\0' && *text != '\0')
-	{
-		switch (*pattern)
-		{
-		case '?':
-		{
-			pattern += 1;
-			text += 1;
-		}
-		break;
-
-		case '*':
-		{
-			Glob_Result result = glob(pattern + 1, text);
-			if (result != Glob_Result::UNMATCHED)
-				return result;
-			text += 1;
-		}
-		break;
-
-		case '[':
-		{
-			bool matched = false;
-			bool negate = false;
-
-			pattern += 1; // skipping [
-			if (*pattern == '\0')
-				return Glob_Result::SYNTAX_ERROR; // unclosed [
-
-			if (*pattern == '!')
-			{
-				negate = true;
-				pattern += 1;
-				if (*pattern == '\0')
-					return Glob_Result::SYNTAX_ERROR; // unclosed [
-			}
-
-			char prev = *pattern;
-			matched |= prev == *text;
-			pattern += 1;
-
-			while (*pattern != ']' && *pattern != '\0')
-			{
-				switch (*pattern)
-				{
-				case '-':
-				{
-					pattern += 1;
-					switch (*pattern)
-					{
-					case ']':
-						matched |= '-' == *text;
-						break;
-					case '\0':
-						return Glob_Result::SYNTAX_ERROR; // unclosed [
-					default:
-					{
-						matched |= prev <= *text && *text <= *pattern;
-						prev = *pattern;
-						pattern += 1;
-					}
-					}
-				}
-				break;
-				default:
-				{
-					prev = *pattern;
-					matched |= prev == *text;
-					pattern += 1;
-				}
-				}
-			}
-
-			if (*pattern != ']')
-				return Glob_Result::SYNTAX_ERROR; // unclosed [
-			if (negate)
-				matched = !matched;
-			if (!matched)
-				return Glob_Result::UNMATCHED;
-
-			pattern += 1;
-			text += 1;
-		}
-		break;
-
-		case '\\':
-			pattern += 1;
-			if (*pattern == '\0')
-				return Glob_Result::SYNTAX_ERROR; // unfinished escape
-																					// fallthrough
-		default:
-		{
-			if (*pattern == *text)
-			{
-				pattern += 1;
-				text += 1;
-			}
-			else
-			{
-				return Glob_Result::UNMATCHED;
-			}
-		}
-		}
-	}
-
-	if (*text == '\0')
-	{
-		while (*pattern == '*')
-			pattern += 1;
-		if (*pattern == '\0')
-			return Glob_Result::MATCHED;
-	}
-
-	return Glob_Result::UNMATCHED;
-}
\ No newline at end of file